Ontologia

HydroBASINS lev08 watershed · #1081587830

Bassin de Sand River

A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.

Crosses 1 administrative regions : Ehlanzeni

Pfafstetter: 12520602

Sub-basin area

1 929,9km²

Upstream area

1 930,1km²

Discharge

8,6m³/s

Mean elev.

505m

Administrative coverage

Hydrographic chain

▼ Drains into

Bassin de Sabie River2126 km²

▲ Receives from 0 basins

Source / headwater (no upstream basin)

1 dept-equivalent regions (GADM L2)

6 intersecting protected areas

Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.

Species present

2 521 distinct species · 193 199 observations

Source: GBIF Occurrence snapshot 2026-05-01.

Densité d'observations

193 199 obs · 44 cellules
Obs. / cellule
≥ 69 463
10 664–69 462
2 222–10 663
461–2 221
< 461

Source : GBIF — observations agrégées par hexagones 0.027° × 0.027° (~22km), filtre précision coordonnée < 10 km. Fond carte : OpenFreeMap · © OpenStreetMap.

Ecological tissue

Sample of 11 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.

ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).

RègnesAnimalPlanteChampignonBacterie
RelationsPredationParasitismeSymbiosePollinisation
StatutEn dangerVulnérableProtégéeEndémique

Indicateurs du tissu écologique

Tissu écologique de Bassin de Sand River : 10 espèces dont 1 patrimoniale (LR IUCN CR/EN/VU) reliées par 8 interactions GloBI sur 2 types (connectance 14.5%, filtre Serrano α=0.2). 1 bulle taxonomique (cascade genre/famille GloBI, ≥3 espèces).

Espèces affichées
11
Interactions affichées
8
Connectance
0.145
Patrimoniales
1
Plus dense que (national)0 %(top 100%)

Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).

Hydroclimate (BasinATLAS lev08)

Mean T°

21,1°C

Annual rain

711mm

Moisture idx (CMI)

-0,55

Runoff

119mm/an

PET

1 585mm

AET

614mm

Mean slope

3,2°

Water table

341cm

Forest

71%

Crops

6%

Urban

14%

Protected

100%

HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)